Paper-taking pin.



No. 630,864. Patented Aug; 15,1899,

L. c. CROWELL.

PAPER TAKING PIN.

A n filed Feb. 13Y 189 UNITED v STATES PATENT OE IcE.

LUTHER C. CROVVELL, OF NE\V YORK, N. Y., ASSIGNOR TO ROBERT HOE,THEODORE II. MEAD, AND CHARLES \V. CARPENTER, OF SAME PLACE.

PAPER-TAKING PIN.

SPECIFICATION forming part of Letters Patent No. 630,864, dated August15, 1899.

Application filed February 13, 1899. Serial No. 705,364. (No model.)

To all whom it may concern:

Be it known that I, LUTHER O. CEowELL, a citizen of the United States,residing at New York city, county of Kings, and State of New York, haveinvented certain new and useful Improvements in Paper-Taking Pins, fullydescribed and represented in the following specification and theaccompanying drawings, forming a part of the same.

This invention relates to certain improvements in the pins which areusedin the folding and cutting cylinders of printing machinery and someother analogous machines for the purpose of forwarding or controllingsheets or webs of paper or other analogous material.

Pins of the character heretofore referred to are usually mounted incylinders and are protruded beyond the surface of the cylinders bysuitable mechanism in order to impale the sheet or web to carry itforward. At the proper time the pins are withdrawn from the sheets orwebs in order to release the same. It occurs in certain classes ofmechanism for handling webs, and especially in printing machinery, thatthere is a slight variation between the speed of the web or sheet whichis to be taken by the pins and the speed of the pins. This variation maybe due either to the fact that the web orsheet travels a trifle slowerthan the surface speed of the cylinder which carries the pins or to thefact that when the pins are protruded beyond the surface of the cylindertheyhave a slightly-greatercircumferential distance to travel than thesurface of the cylinder, and consequently travel somewhat faster thanthe cylinder. The difference in speed between the travel of the webs orsheets and that of the pins, whether it be due to the causes mentionedor to other causes, results in a slight tearing or slitting of the websor sheets at the points where the pins are inserted. These slits ortears, while not of great extent, are sufficient to disfigure thematerial.

It is the purpose of this invention to so mount the taking-pins of thecylinders of printing'machines or other machines forhandling materialanalogous to paper as to avoid the objectionable tearing hereinbeforereferred to.

Vith these and other objects in View the invention consists in certainparts, improvements, and combinations, such as will be hereinafterdescribed, and fully pointed out in the claims hereunto appended.

In the accompanying drawings, which form a part of this specification,Figure 1 is a sectional detail of a port-ion of a pin-carryingcutting-cylinder for paper or other analogous material, showing theimproved manner of mounting the pins, the pins being in the positionwhich they occupy at the time when they take the sheet or web. Fig. 2 isa plan view of the construction shown in Fig. 1, the web of materialbeing omitted. Fig. 3 is a view similar to Fig; 1, but with the pins ina diiferent position. Fig. 4 is a detail View of a modified form of theconnection between the pins and their carrying-studs. I

In the accompanying drawings, 1 indicates a portion of acutting-cylinder which acts as a carrier for the pins, such a cylinderhaving been selected for the purpose of convenience in order toillustrate the invention. 2 represents the ordinary groovedcutting-block carried bysuch cylinder, andS represents a sheet or web ofpaper or other analogous material.

One of the paper-taking pins is indicated at at. The pins are mounted soas to play through slots 20 in the cylinder, and each pin is preferablyprovided with a slotted extension 5, which embraces astud 6, carriedupon an arm 7. A series of these arms, one for each pin, is preferablyprovided, the arms being carried on a rod 9, which is mounted in ears 10on the cylinder. The rod 9 is provided with an arm 8', which preferablycarries an antifriction-roll 12, which runs on a suitable cam, (notshown,) such cams being a common feature in mechanisms of thisdescription. The connection between the extension 5 and the stud 6 is aloose connection, which permits of a slight axial movement of the pinswith relation to the studs. In the form shown in Fig. 3 the extension 5has an elongated slot and screws 11 are tapped through the ends of theslotted extension and bear against the stud 6. These screws serve toadjust the position of the pins with reference to the studs and also mayact to cause a slight friction, so that the pins will turn are mounted.

less easily on the studs. In the form shown in Fig. 4: the extension 5is provided with a circular orifice in which the stud 6 fits looselyenough to permit the desired play.

'The cylinder is also provided with a series of perforations 13. Locatedin these perforations are headed pins 14, the stems of said pins beingsurrounded by light springs 15, which bear against the heads of the pinsat one end and against the screw-plu gs 16 at the other end. Thescrew-plugs engage screwthreads in the perforations 13 and serve toadjust the tension of the springs, as well as to afford abearing-surface for them. The springs and plugs serve to back up thepapertaking pins, and the axial movement which .has been referred to asoccurring between the shanks of the pins andthe studs 6 of the arms bywhich they are operated takes place against the stress of the springs.It may be here remarked that while the plugs are preferably used inconnection with the springs they may, if desired, be omitted and thesprings be used alone.

The operation of the device will be readily understood from theillustration and a brief description.

Fig. 1 shows the pins in the position which they occupy at the instantwhen they have been protruded by the movement of the rod which carriesthem and have passed through the web or sheet the leading end of whichthey are to take. At this time the pins are forced by the springs andplugs against the farther side of the slots 20 in the cylinder throughwhich said pins pass. If the web or sheet and the surface of thecylinder are traveling at the same speed, there will be no movement ofthe pins other than that by which they are caused to impale thematerial. If, however, the pins are for any reason traveling slightlyfaster than the material, the springs will allow them to turn slightlywith relation to the studs on which they are mounted and permit them toassume the position shown in Fig. 3, thereby preventing them fromtearing the material, since by the time the pins have been moved to the.other side of the aperture 20 the speed of the pins and material willhave become equalized.

It will be understood that the springs 15 will be light springs, theirstrength and tension being, however, controlled by the weight of the webof material which the pins are to impale.

WVhile the construction shown is a convenient and ready means forcarrying the invention into effect, it is to be'understood that theinvention is by no means limited to such a construction. The'gist of theinvention resides in establishing such a connection between the pins andthe devices for operating them as to permit a slight movement of thepins in a direction opposite to the direction of movement of the carrierin which the pins The invention is to be understood, therefore, asembracing all means for effecting the result specified which fall withinthe spirit and scope of the claims hereunto appended.

What I claim is 1. The combination'with a carrier, of impaling devicesmounted thereon, said devices being arranged to have a limited movementin a direction opposite to the movement of the carrier which movement isinsufficient to release a sheet or web taken by the impaling devices,whereby a sheet or web may be taken 7 by the impaling devices andforwarded thereby without being torn, substantially as described.

2. The combination with a carrier, of impaling'devices mounted thereon,and operating means whereby said devices may be caused q to take andrelease a web or sheet, the connection between the operating means andthe:

3. The combination with a rotating carrier, of impaling devices mountedthereon and op.- crating means whereby said devices maybe caused to takeand release a web or sheet, the connection between the operating meansand the impaling devices being such as'to.

permit a limited mo vement of said devices in a direction opposite tothat of the carrier said movement being insufficient to permit therelease of a sheet or web taken by the impaling devices whereby a sheetor web may be taken by the impaling devices and forwarded therebywithout being torn, substantially as described.

l. The combination with a carrier,of impaling devices mounted thereon,operating means whereby the devices may be caused to take and release aweb or sheet, a loose connection between the operating means and theimpaling devices, and means for controlling the movement permitted bysaid loose connection, substantially as described.

5. The combination with a rotating carrier, of impaling devices mountedthereon, operating means whereby the devices maybe caused to take andrelease a web or sheet, a loose connection between the operating meansand the impaling devices, andmeans for controlling the movementpermitted by said loose connection, substantially as described.

6. The combination with a carrier, of impaling devices mounted thereon,operating.

means whereby the devices may be caused to of impaling devices mountedthereon, operating means whereby the devices may be caused to take andrelease a web or sheet,a loose connection between the operating meansand the impaling devices, and a spring for controlling the movementpermitted by said loose connection, substantially as described.

8. The combination with a rotating carrier, of a set of impaling-pins,slots in the carrier through which the said pins work, the slots beinglarger than the pins, operating means whereby the pins are caused tomove lengthwise of the slots to impale and release the sheet or web ofmaterial, the connection between the pins and the operating means beingsuch as to permit the pins to move crosswise of the slots, and meanscarried by the carrier for controlling the last-named movement of thepins, substantially as described.

9. The combination with a rotating carrier having enlarged slotstherein, a set of impaling-pins working in the slots, arms for causing amovement of the pins lengthwise of the slots, the pins being looselyconnected to said arms, and a spring for controlling the amount of a setof impaling-pins, an arm to which the v impaling-pins are looselyconnected, a set of springs mounted in the carrier, and plugs carried bythe springs and bearing against the pins, substantially as described.

11. The combination with a rotating carrier, of a set of impaling-pins,arms by which said pins are operated, there being a loose connectionbetween the pins and the arms, springs for controlling the playpermitted by said loose connection, and means for adjusting the tensionof the springs, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

LUTHER C. CROWELL.

Vitnesses:

F. WV. H. CRANE, GEO. 1. BROWN.

